The determination of fluorine in rare earth fluorides by high temperature hydrolysis
作者:Charles V. Banks、Keith E. Burke、Jerome W. O'Laughlin
DOI:10.1016/s0003-2670(00)88149-0
日期:——
determination of fluorine in the fluorides of scandium, yttrium, and the lanthanons. These fluorides have been divided into two classes according to their rate of hydrolysls. Lutetium, ytterbium, cerium (III), scandium. gadolinium, terbium, dysprosium, holmium, erbium, and thulium auorides can be hydrolyzed in 30 min or less. Yttrium. lanthanum, praseodymium. neodymlum, samarium, and europium fluorides
热水解技术已用于测定钪、钇和镧系元素的氟化物中的氟。这些氟化物根据它们的水解速率分为两类。镥、镱、铈 (III)、钪。钆、铽、镝、钬、铒和氧化铥可以在 30 分钟或更短的时间内水解。钇。镧、镨。钕、钐和铕氟化物需要 45 到 150 分钟才能完全水解。加速剂,如氧化铀(U/sub 3/C/sub 8/)、氧化铬(UI)。这些氧化物的混合物已成功地用于减少后一组氟化物定量水解所需的时间。对于除镧、镨和钕之外的所有这些氟化物,使用正确的促进剂可将水解时间缩短至 30 分钟或更短。(授权)